To be able to install your application to the device with S60 3^rd edition (I think it will be same to UIQ3 but I don’t have a UIQ3 phone to verify it), you don’t have to apply for a developer’s certificate to sign your sis file. The application signed with your own certificate can be installed to the device with S60 3^rd edition which based Symbian 9.x. The sample code helloworldbasic_myCert.zip is a simple modification to the helloworldbasic from S60 3^rd Edition SDK. To be able to change SID easily, I introduced a helloUID.h and define the constant of SID there. Once your application is mature and being tested widely and ready to sign as a formal product, you just change you SID (issued by Symbian) in the helloUID.h and yourApp.pkg file (which I haven’t found a way to use one source infomation) and your application ready to go.

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